Serving 2 django sites with the same code - django

I'm serving a django site with apache and wsgi using an apache config as follow:
Alias /media/ /var/www/media/
Alias /files/ /var/www/files/
WSGIDaemonProcess fc processes=5 threads=5 display-name=%{GLOBAL}
WSGIProcessGroup fc
WSGIScriptAlias / /home/path/to/django.wsgi
The app is served in the root directory of the host. I'd like now to change this so I can serve it at http://host/app1 and another one, with a different django setting, at http://host/app2
How can I change the config to do this?
Thanks

You'll need a set of WSGI* directives for each project. That second parameter to WSGIScriptAlias tells Apache where the project lives in the tree; WSGI removes this prefix before the URL is passed to Django's URL resolver.
For example:
WSGIDaemonProcess app1 threads=15
WSGIScriptAlias /app1 /var/www/django_project1/django.wsgi
<Location /app1>
WSGIProcessGroup app1
</Location>
WSGIDaemonProcess app2 threads=15
WSGIScriptAlias /app2 /var/www/django_project2/django.wsgi
<Location /app2>
WSGIProcessGroup app2
</Location>
I haven't tried to optimize this; there may be a better way. But this should get you running.

You may try to make other folder with second settings.py and create symbolic links to your apps, locales, static, templates, urls.py etc.
I have multiple projects using same apps so I've put them in standalone folder which i added to python path. I also use same database for both sites, but i have different SITE_ID so i can specify wchich site i want to have my content. This way i can have totally different websites using different templates, styles and images having the same content. If JS scripts are the same on both sites i create a symlink.

Related

How to deploy multiple django apps on apache in Windows?

I want to deploy multiple django apps on apache on Windows but only know how to deploy one.
Overriding the localhost of the Wamp Server I can deploy the app without problem but I need to deploy more and don't know how. I've sehen virtual hosts and think are good but don't know how to configurate them. Anyone know how can I do this? Thanks in advance.
hosting severel django apps with Apache is possible using virtual hosts (vhosts)
important to care about:
during config of Apache I recommend to start apache from command line as "httpd.exe" as in XAMPP or WAMP you will not see some of the initial start-up error messages in error.log files.
you can only use 1 python version even in different virt.env for each vhost as apache module mod_wsgi compilation needs to fit to it and is loaded once at startup of apache
something like this in httpd.conf (you should have this already in place because of your running single app config):
LoadFile "c:/.../python/python38/python38.dll"
LoadModule wsgi_module "c:/..../mod_wsgi.cp38-win_amd64.pyd"
for those starting from scratch:
activate virt.env.
> pip install mod_wsgi
> mod_wsgi-express module-config
will give above output (LoadFile ....) that you need to copy to httpd.conf
how to set path to virt.env and app folders:
with 1 host you would point to your virt.env by setting WSGIPythonHome and WSGIPythonPath to point to your app folders in httpd.conf:
WSGIPythonHome "d:/..../django_project/env_folder"
WSGIPythonPath "d:/..../django_project/app_name"
but: you can not place WSGIPythonHome/WSGIPythonPath inside the VirtualHost declaration in httpd-vhosts.conf .... it will cause an error message
Solution: set paths in wsgi.py dynamically and remove WSGIPythonHome/WSGIPythonPath from apache *.conf:
wsgi.py:
# replacement for WSGIPythonHome "d:/..../django_project/env_folder"
# choose one:
sys.path.append('d:/.../env_folder/lib/site-packages') # add individual virt.environment packages at the end of sys.path; global env packages have prio
sys.path.insert(0,'d:/.../env_folder/lib/site-packages') # add individual virt.environment packages at the beginning of sys.path; indiv. virt.env packages have prio over global env
# replacement WSGIPythonPath "d:/..../django_project/app_name"
sys.path.append('d:/.../django_project/app_name') # add indiv. app folder to search path
here is example for apache conf:
(why the dummy host: there is a (strange or buggy) behavior of apache ... if none of the virtual host names match the request, then automatically apache will dispatch the request to the first vhost in the config - no matter which server name is defined ther. This can lead to confusion because the total wrong app is called and an error messages will most certainly pop-up from inside django, not indicating that the error is on the Apache conf level. A dummy host with a simple index.html and an error message can make this tranparent)
httpd-vhost.conf:
<VirtualHost *:80>
ServerName Dumme_Host
DocumentRoot "d:/WEBSPACES/Dummy_Host"
<Directory d:/WEBSPACES/Dummy_Host>
Require all granted
</Directory>
</VirtualHost>
<VirtualHost *:80>
ServerName xxxx1
WSGIScriptAlias / "d:/.... /wsgi.py" application-group=app_name1
Alias /media/ d:/.../media/
Alias /static/ d:/.../static/
<Directory d:/.../app_name1>
Require all granted
</Directory>
<Directory d:/.../media>
Require all granted
</Directory>
<Directory d:/.../static>
Require all granted
</Directory>
</VirtualHost>
<VirtualHost *:80>
ServerName xxxx2
WSGIScriptAlias / "d:/.... /wsgi.py" application-group=app_name2
Alias /media/ d:/.../media/
Alias /static/ d:/.../static/
<Directory d:/.../app_name2>
Require all granted
</Directory>
.....
</VirtualHost>

Apache doesn't load static folder for Django project

I have a Django 1.4.5 project called mp which I'm trying to run on my localhost using Apache 2.4. Following the official tutorial for Django with mod_wsgi
(How to use Django with Apache and mod_wsgi) I managed to display my Django page when I visit http://127.0.0.1:8801/.
My project folder mp is located in /opt/masterportal/mp, and the static files are located in /opt/masterportal/mp/mp/static.
This is my masterportal.conf file in /etc/apache2/sites-available:
Listen 8081
<VirtualHost *:8081>
ServerAdmin my#mail.adress
XSendFilePath /opt/masterportal/mp/mp/uploads/
<Files *.*>
XSendFile On
</Files>
WSGIDaemonProcess masterportal python-path=/opt/masterportal/mp:/opt/masterportal/mp/env/dev/lib/python2.7/site-packages
WSGIProcessGroup masterportal
WSGIScriptAlias / /opt/masterportal/mp/mp/apache/wsgi.py
Alias /static /opt/masterportal/mp/mp/static
<Directory /opt/masterportal/mp/mp/static>
Require all granted
</Directory>
<Location />
WSGIProcessGroup masterportal
Require all granted
</Location>
</VirtualHost>
However, the website at http://127.0.0.1:8801 can't find any of the static files. This is odd, because the exact same project works on the server of my university (where I don't have access to the apache configuration). So there must be something wrong with my Apache configuration, but I can't see what. I'm desperate for help.
Some general information: I'm using Django 1.4.5 (because this is the version on the university server), and Apache 2.4. The project runs in a virtualenv located here /opt/masterportal/mp/env. I also tried it with Alias /static/ instead of Alias /static, but that didn't work either. My apache2.conf is still original - I made no changes there.
Edit: Here's my configuration for the site in /etc/apache2/conf-available/:
<Location "/mp/2015/suse">
ProxyPass https://my-computername:8081/
ProxyPassReverse https://my-computername:8081/
RequestHeader set X-FORWARDED-PROTOCOL ssl
RequestHeader set X-FORWARDED-SSL on
</Location>
Try to move the lines
Alias /static /opt/masterportal/mp/mp/static
<Directory /opt/masterportal/mp/mp/static>
Require all granted
</Directory>
before
WSGIDaemonProcess masterportal python-path=/opt/masterportal/mp:/opt/masterportal/mp/env/dev/lib/python2.7/site-packages
WSGIProcessGroup masterportal
WSGIScriptAlias / /opt/masterportal/mp/mp/apache/wsgi.py
because the link with /static/some_static_files... might be forwared to the wsgi app instead of pointing to the static directory.

Apache is not serving static files from Django app

I don't know what's wrong in my virtualhost for django project but the simply question is no matter what modification I do over this file stills output the same in error log from apache and not load any css or js files, what I can see is that Apache is looking for static and media file in the root web folder: /var/www
[Fri May 30 00:58:08 2014] [error] [client 192.168.1.145] File does not exist: /var/www/static, referer: http://192.168.1.143/dgp/login/
I set up virtual host file as follows:
WSGIPythonPath /var/www/dgp_python2_7/bin/python2.7:/var/www/dgp_python2_7/lib/python2.7/site-packages
WSGIScriptAlias /dgp /var/www/dgp/dgp/dgp/wsgi.py
<VirtualHost 127.0.0.1:80>
ServerName www.dgp.dev
ServerAlias dgp.dev
AliasMatch ^/([^/]*\.css) /var/www/dgp/dgp/static/$1
Alias /media/ /var/www/dgp/dgp/media/
Alias /static/ /var/www/dgp/dgp/static/
Alias /images/ /var/www/dgp/dgp/images/
<Directory /var/www/dgp/dgp/static/>
Order deny,allow
Allow from all
</Directory>
<Directory /var/www/dgp/dgp/media/>
Order deny,allow
Allow from all
</Directory>
ErrorLog /var/www/dgp/dgp/error.log
CustomLog /var/www/dgp/dgp/access.log combined
</VirtualHost>
And in settings.py STATIC_ROOT with '/var/www/dgp/dgp/static/' where is located all the css content.
How can I tell apache or Django to looking for the proper directory '/var/www/dgp/dgp/static/'? It's driving me crazy, I don't understand how something so elemental in development it's so complex for production.
Regards!
Edit with the solution
The really problem was that I didn't disable the default site for Debian Apache (that is the version I'm working for) and has another method for stablish virtualhost, at beginning we have to disable default site with the follow command: a2dissite defaultand everything works now like a charm!
You can tell where your static files are being looked for in your project's rendered html. Just view the source in your browser and look for a stylesheet or javascript include, what is the full path to the file?
My guess, you have to run Django's collect static script, which will collect all the static scripts in all of your project's app and put them into one location. This is a core part of deploying Django projects and unavoidable if you use multiple "apps" in your project.
in your terminal go to the Django projects root folder and type this:
python manage.py collectstatic
Read more at https://docs.djangoproject.com/en/dev/ref/contrib/staticfiles/

setting up two Django websites under Apache with WSGI

I've set up a django website as described in the django docs: https://docs.djangoproject.com/en/dev/howto/deployment/modwsgi/
Now I want to setup another version of the site (different source dir, different database) to run on the same server. There are active users and flex apps who use app #1, so I want to keep app #1 access unchanged. I also rather not change the urls.py at all even for app #2.
I was thinking of different port for app #2
For example
http://192.168.1.1/load_book/123/ will load book from app #1
http://192.168.1.1:444/load_book/123/ will load book from app #2
I'm a complete noob to Apache and WSGI... how do I set it up?
What do you mean by they have the same URLs? The same hostname, perhaps?
Let's say you've got 2 apps:
http://example.com/your_app
http://example.com/my_app
These can both be Django apps, served by WSGI, on the same Apache instance. Using either Directory or Location directives in your apache conf to specify the .wsgi loader file as described in the django docs linked above:
<Location /your_app>
WSGIScriptAlias /your_app /path/to/mysite/apache/your_app/django.wsgi
...
</Location>
<Location /my_app>
WSGIScriptAlias /my_app /path/to/mysite/apache/my_app/django.wsgi
...
</Location>
The only real gotcha is that you'll need to tell your_app and my_app that they are no longer on the document root of the host. To do this, add a base_url parameter to your settings.py and prefix all of the entries in your urls.py with this param. This will ensure when the request comes through Apache, your python app can route it accordingly.
For an easy example of how this is done, have a look at the code for Bookworm, a Django app.
You can attatch the wsgi application to different sub-paths under the same domain. If you do this the paths to the views inside Django will still be the same. You do not have to modify the urls.py. In the following example Django will regard /site1 as the root of project1.
Check out http://code.google.com/p/modwsgi/wiki/InstallationInstructions for documentation on mod_wsgi.
<VirtualHost *:80>
ServerName www.example.com
WSGIDaemonProcess example
WSGIProcessGroup example
WSGIScriptAlias /site1 /home/django/project1/deploy/wsgi.py
<Directory /home/django/project1/deploy>
Order deny,allow
Allow from all
</Directory>
WSGIScriptAlias /site2 /home/django/project2/deploy/wsgi.py
<Directory /home/django/project2/deploy>
Order deny,allow
Allow from all
</Directory>
</VirtualHost>
Now the two sites will run in the same daemon process using different python sub-interpreters.

Django (wsgi) and Wordpress coexisting in Apache virtualhost

I have a Django project that I need mounted at two different subdirectories of my url, and I need Wordpress running at /. So:
*.example.com - WordPress
*.example.com/studio - django
*.example.com/accounts - django
Here's the httpd.conf that I have so far:
<VirtualHost *:80>
ServerName wildcard.localhost
ServerAlias *.localhost
AddType application/x-httpd-php .php
DocumentRoot /var/empty
Alias /site_media/ /home/zach/projects/python/myproject/static/
Alias /media/ /home/zach/projects/python/myproject/env/lib/python2.6/site-packages/django/contrib/admin/media/
Alias / /home/zach/projects/python/myproject/wordpress/
WSGIScriptAlias /accounts /home/zach/projects/python/myproject/app/privio.wsgi
WSGIScriptAlias /studio /home/zach/projects/python/myproject/app/privio.wsgi
<Directory /home/zach/projects/python/myproject/app>
Order allow,deny
Allow from all
</Directory>
<Directory /home/zach/projects/python/myproject/wordpress>
Order allow,deny
Allow from all
</Directory>
Before I added the config for WordPress, the Django app was working fine. But with this new setup I am able to see the WordPress install at /, but the Django app isn't getting served. I'm sort of a noob at Apache config - what am I missing?
Replace:
DocumentRoot /var/empty
with:
DocumentRoot /home/zach/projects/python/myproject/wordpress
Remove:
Alias / /home/zach/projects/python/myproject/wordpress/
Replace:
WSGIScriptAlias /accounts /home/zach/projects/python/myproject/app/privio.wsgi
WSGIScriptAlias /studio /home/zach/projects/python/myproject/app/privio.wsgi
with:
WSGIScriptAliasMatch ^(/(accounts|studio)) /home/zach/projects/python/myproject/app/privio.wsgi$1
In other words, use DocumentRoot to refer to wordpress that needs to be at root of site and not Alias directive.
The WSGIScriptAliasMatch is so Django itself thinks it is still mounted at root site even though only nominated sub URLs of it are actually passed through. This simplifies things for urls.py.
Note that the $1 at end of WSGI script path is important, so don't leave it off.
Paging Graham Dumpleton :)
I'd venture a guess that the line
Alias / /home/zach/projects/python/myproject/wordpress/
overrides everything below it. Therefore any requests to /accounts will be processed by the wordpress application rather than by the Django application.
From the documentation:
Mounting At Root Of Site
If instead you want to mount a WSGI application at the root of a site, simply list '/' as the mount point when configuring the WSGIScriptAlias directive.
WSGIScriptAlias / /usr/local/www/wsgi-scripts/myapp.wsgi
Do note however that doing so will mean that any static files contained in the DocumentRoot will be hidden and requests against URLs pertaining to the static files will instead be processed by the WSGI application.